73840942420688 has 40 divisors (see below), whose sum is σ = 143145608830536. Its totient is φ = 36900144691200.

The previous prime is 73840942420681. The next prime is 73840942420711. The reversal of 73840942420688 is 88602424904837.

It can be written as a sum of positive squares in 4 ways, for example, as 116532111424 + 73724410309264 = 341368^2 + 8586292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73840942420681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268217828 + ... + 268492988.

Almost surely, 2^{73840942420688} is an apocalyptic number.

It is an amenable number.

73840942420688 is a deficient number, since it is larger than the sum of its proper divisors (69304666409848).

73840942420688 is a wasteful number, since it uses less digits than its factorization.

73840942420688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284343 (or 284337 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 65.

The spelling of 73840942420688 in words is "seventy-three trillion, eight hundred forty billion, nine hundred forty-two million, four hundred twenty thousand, six hundred eighty-eight".